In a four stroke cycle engine, the sequence of operations is
a)Compression, expansion, suction and exhau*
b)Suction, expansion, compression and exhaust
c)Expansion, compression, suction and exhaust
d)Suction, compression, expansion and exhaust

A new hack blade after a flew strokes become loose because of the
a) Stretching of the blades
b) Wing nut thread being worn-out
c) Wrong pitch of blade
d) Improper selection of the set of saws

Diesel as compared to petrol is
a)Highly ignitable
b) More difficult to ignite
c) Less difficult to ignite my d) None of these

For the same compression ratio
a)Compression ratio has nothing to do with efficiency
b)Both Otto and Diesel cycles are, equally efficient
c)Diesel cycle is more efficient than Otto
d)Otto cycle is more efficient than the Diesel

Why are soldering irons made with copper heads?
a)Because copper has good conductivity
b)Because copper has good conductivity & strong affinity for the solder
c)Because copper has bed conductivity
d)None of these

Dressing & bandages are used to
a)Reduce the victim pain
b)Reduce internal bleeding
c)Help control bleeding & prevent infection
d)Any one of these

In the open combustion chamber
a)The fuel injected directly into the space on the top of cylinder
b)The fuel injected directly into the space on the bottom of cylinder
c)Either (a) or (b)
d)Neither (a) nor (b)

In internal combustion engine, the process of removing the burnt gases from the combustion chamber of the engine cylinder is known as
a)Detonation
b) Supercharger
c) Scavenging
d) None of these

Which one of following compressed in a Diesel engine?
a)Air alone
b) Air & fuel
c) Lubrication oil
d) Oil

In indirect-injection type
a) Combustion space is divided into two parts
b)Combustion space is divided into three parts
c)Combustion space is divided into four parts
d)None of these

In jacket Water cooling system, the fresh water enters the diesel engine at the: -
a)The bottom of the cylinder jackets
b) The top of the cylinder jackets
c) The middle of the cylinder jackets
d) None of these

In a diésel engine, the fuel is ignited. by
a)Spark
b) Injected fuel
c) Heat resulting from compressing air that is supplied for combustion
d) Ignition

Diesel engine as compared to petrol is
a)Highly ignitable
b) Less difficult to ignite
c) More difficult to ignite
d) All of these